I'm travelling solo to Carrick on Shannon in early Sept. for a wedding and will also be visiting a friend in Belfast. Fly in and out of Dublin. I was planning on taking the train between Carrick, Dublin and Belfast but I was wondering if there are any towns of interest worth stopping at on the way, between either of these places? In particular I'm keen on outdoorsy type of stuff like hiking.
I only have 2 weeks unfortunately, so really only have time for one extra stop on my trip.
I've already seen a bit of Ireland but have no experience on the train and can't afford car hire this time around.
Thanks in advance! :)